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Finding the Fourth Proportional to 103,692.60, 155,551.74 and 37,139.88

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Solution

The fourth proportional to 103,692.60, 155,551.74 and 37,139.88 is: 55,714.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,692.60 : 155,551.74 = 37,139.88 : x
  2. Step 2: Convert to fraction form
    103,692.60/155,551.74 = 37,139.88/x
  3. Step 3: Cross multiply
    103,692.60x = 155,551.74 × 37,139.88
  4. Step 4: Simplify right side
    103,692.60x = 5,777,172,957.39
  5. Step 5: Solve for x
    x = 5,777,172,957.39/103,692.60
  6. Step 6: Final answer
    x = 55,714.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.